Question

在发布之前我几乎尝试了所有内容（google，Apple Dev Doc等）。我希望在发布之前我没有错过任何内容..

我已经构建了一个有效的JSON＆lt; - ＆gt; Web服务＆lt; - ＆gt; iPhone登录。

使用以下代码：

NSString *responseString = [[[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]autorelease];
NSDictionary *jsonDict = [responseString JSONValue];
NSString *loginResult = [jsonDict valueForKey:@"LoginResult"];

loginResult是员工的姓名：例如“Henning Wenger”

相应的JSON如下所示：

{"LoginResult":"S:00000412"}

现在我有一个更复杂的任务，我无法想办法解决这个问题：

我从网络服务获得以下JSON：

{"GetTeamPresentStatusResult"[
{"Firstname":"Steffen","Id":"00000456","IsPresent":"true","Lastname":"Polker"},
{"Firstname":"Erich","Id":"00000455","IsPresent":"true","Lastname":"Welter"},     
{"Firstname":"Titus","Id":"00000454","IsPresent":"true","Lastname":"Sommerbeck"},      {"Firstname":"Ruediger","Id":"00000453","IsPresent":"true","Lastname":"Oelmann"},{"Firstname":"Heinz","Id":"00000452","IsPresent":"true","Lastname":"Radelfs"},{"Firstname":"Franz","Id":"00000451","IsPresent":"true","Lastname":"Wippermann"},{"Firstname":"Klaus-Dieter","Id":"00000450","IsPresent":"true","Lastname":"Just"},{"Firstname":"Alan","Id":"00000412","IsPresent":"true","Lastname":"Turing"},{"Firstname":"Konrad","Id":"00000138","IsPresent":"true","Lastname":"Zuse"},{"Firstname":"Marius","Id":"00000112","IsPresent":"true","Lastname":"Sandmann"}]}

我的处理代码开头于：

NSDictionary *jsonDict = [responseString JSONValue];
NSArray *teamStatus = [jsonDict objectForKey:@"GetTeamPresentStatusResult"];
[self BuildDataSource: nil :teamStatus];

teamStatus现在包含10个键/值对。

以下是我尝试为我的表构建数据源的方法：

- (void)BuildDataSource: (id) sender: (NSArray*)teamStatusData{

teamStatusMutableArray = [[NSMutableArray alloc]init];
teamStatusDataSection = [[NSArray alloc]initWithArray:teamStatusData];

teamStatusDictSectionOne = [NSDictionary dictionaryWithObject:teamStatusDataSection forKey:@"OrgUnits"];
[teamStatusMutableArray addObject:teamStatusDictSectionOne];

[tblView reloadData];
}

我无法弄清楚从这里走哪条路来获取我需要的数据。

我是否需要不同的数组，其中一个包含firstname / value，另一个包含lastname / value？如果是，我该怎么做？

到目前为止，我尝试了一些没有帮助的行：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

static NSString *CellIdentifier = @"Cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
}

// Set up the cell...
//First get the dictionary object

NSDictionary *dictionary = [teamStatusMutableArray objectAtIndex:indexPath.section];

NSString *testString = [dictionary valueForKey:@"Firstname"];
NSArray *testarray = [dictionary objectForKey:@"OrgUnits"];

NSString *test = [testarray JSONRepresentation];

test = [test stringByReplacingOccurrencesOfString:@"[" withString:@""];
test = [test stringByReplacingOccurrencesOfString:@"]" withString:@""];

NSDictionary *jsonDict = [test JSONValue];
}

我需要的是拥有一个带有可以绑定到表的员工姓名的数据源。从那里我想我可以在没有额外帮助的情况下走自己的路。

我来自.NET（C＃）世界，也许这让我感到困惑。

非常感谢你..

的Henning

如果您需要更多详细信息，请询问！

SPtail的详细信息：

这是.h文件：

#import <UIKit/UIKit.h>
#import "RootViewController.h"
#import "EmployeeDetails.h"

@interface OrgUnitAA:NSObject {
NSString *FirstName;
NSString *Id;
NSString *IsPresent;
NSString *LastName;
}

@property (nonatomic, retain) NSString *FirstName;
@property (nonatomic, retain) NSString *Id;
@property (nonatomic, retain) NSString *IsPresent;
@property (nonatomic, retain) NSString *LastName;

@end

@interface TeamStatusView : UIViewController {

UITableView *tblView;
NSMutableArray *teamStatusMutableArray;
NSArray *teamStatusDataSection;
NSDictionary *teamStatusDictSectionOne;
UIViewController *EmployeeDetails;
UIViewController *RootViewController;
NSMutableData *responseData;
}

@property (nonatomic, retain) IBOutlet UITableView *tblView;
@property (nonatomic, retain) NSArray *teamStatusMutableArray;
@property (nonatomic, retain) NSMutableArray *dummyMutableArrayTimeQuota;
@property (nonatomic, retain) NSArray *teamStatusDataSection;
@property (nonatomic, retain) NSDictionary *teamStatusDictSectionOne;
@property (nonatomic, retain) IBOutlet UIViewController *RootViewController;
@property (nonatomic, retain) IBOutlet UIViewController *EmployeeDetails;

- (void)GetTeamStatus: id;
- (void)BuildDataSource: id: (NSArray*)teamStatusData;
@end

Answer 1

嘿，Web服务返回的数组包含字典，这很明显。

您可以创建一个扩展NSObject并转换每个字典的类，而不是为每个属性使用不同的数组，这样您就可以将对象放在数组中而不是字典中。在这种情况下：

@interface OrgUnit:NSObject {
     NSString *FirstName;
     NSNumber *Id;
     bool IsPresent;
     NSString *LastName;
}
//And all the properties here

在此之后，您可以使用

将字典转换为对象

OrgUnit *unit = [[OrgUnit alloc] init];
[unit setValuesForKeysWithDictionary:dictionary];

PS：对象中的变量名称应与字典

中的键名相同

Answer 2

我找到了解决方案。

这是我获取数据的方式：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

static NSString *CellIdentifier = @"Cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
}

// Set up the cell...

NSDictionary *dictionary = [teamStatusMutableArray objectAtIndex:indexPath.section];
NSArray *teamStatus = [dictionary objectForKey:@"OrgUnits"];

NSEnumerator *e = [teamStatus objectEnumerator];
id object;

int i = 0;
while (object = [e  nextObject]) {

    if(i == indexPath.row)
    {
        NSString *firstname = [object valueForKey:@"Firstname"];
        NSString *lastname = [object valueForKey:@"Lastname"];
        NSString *fullname = [NSString stringWithFormat:@"%@%@%@", lastname, @", ", firstname];
        cell.textLabel.text = fullname;

        bool isPresent = [object valueForKey:@"IsPresent"];

        if(isPresent == true)
        {
            cell.imageView.image = [UIImage imageNamed:@"GreenBall.png"];
        }
        else
        {
            cell.imageView.image = [UIImage imageNamed:@"RedBall.png"];
        }

        break;
    }
    i++;
}

[aiActivity stopAnimating];
self.aiActivity.hidden = true;

return cell;

}

Answer 3

可能只是一个错字。

改变这个：

teamStatusDictSectionOne = [NSDictionary dictionaryWithObject:teamStatusDataSection forKey:@"OrgUnits"];

对此：

teamStatusDictSectionOne = [NSDictionary dictionaryWithObjects:teamStatusDataSection forKey:@"OrgUnits"];

更改是-dictionaryWithObjects。复数。 Obj-C对这些东西有点挑剔。

此外，在构建单个单元格时，您将引用indexPath.section。我认为你应该引用单元格的行。该行应与您的数组索引相关联。

NSInteger row = [indexPath row];
NSDictionary *dictionary = [teamStatusMutableArray objectAtIndex:row];

复杂JSON作为UITableView iOS的NSArray数据源

3 个答案: